If I click on the Open Emerg Transfer Window button and I don't see anyone that I want to purchase and therefore make no purchases or sales, will I still have used up one of my emergency transfer windows? Or will I still have 2?

I am not pro member but was wondering when usually its ideal to use your 2 emergency window? I mean from november to feb transfer window its a long gap so I am assuming 1 emergency cud be used in between these, or your very crucial player gets injured and out for season.